The act of masturbating in a crowded room (usually 4-6 people) without their knowledge, and then proceeding to dive your semen soaked hand into a pack of shapes. Afterwards, you can either wash your hands or lick the now flavor packed semen off of your fingers
Ben: Dude, did you hear what happened in Cabin 9 last night?
John: No what happened?
Ben: Apparently Xavier was shapesturbating
John: That's disgusting
by Jernandez December 03, 2016
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